Toshiba Portege R500 User Manual - Page 116

Power and Power-Up Modes ■ The condition of the battery terminals - you should always ensure the terminals stay clean by wiping them with a clean dry cloth before installing the battery pack. Retaining data with power off Refer to User Information Guide about Charging time. Extending battery life To maximize the life of your battery packs: ■ At least once a month, disconnect the computer from a power source and operate it on battery power until the battery pack fully discharges. Before doing so, follow the steps as detailed below. 1. Turn off the computer's power. 2. Disconnect the AC adaptor and turn on the computer's power - if it does not turn on then go to Step 4. 3. Operate the computer on battery power for five minutes. If you find that the battery pack has at least five minutes of operating time, continue operating until the battery pack is fully discharged, however, if the Battery indicator flashes or there is some other warning to indicate a low battery condition, go to Step 4. 4. Connect the AC adaptor to the DC IN 15V jack of the computer, and to a wall outlet that is supplying power. The DC IN indicator should glow blue, and the Battery indicator should glow orange to indicate that the battery pack is being charged, however, in the event that DC IN indicator does not glow this indicates that power is not being supplied - check the connections for the AC adaptor and the power cord. 5. Charge the battery pack until the Battery indicator glows blue. ■ If you have extra battery packs, rotate their use. ■ If you will not be using the system for an extended period, for example for more than one month, remove the battery pack from the computer. ■ Store spare battery packs in a cool dry place out of direct sunlight. User's Manual 6-9